At the end of the semester, the library wants Rina's kiosk to convert numeric exam scores into letter grades for the results board. Given a score 0-100, print the grade: "A" for ≥80, "B" for ≥60, "C" for ≥40, "F" otherwise.
Input
One integer score.
Output
One of A, B, C, F.
Constraints
0 ≤ score ≤ 100
Sample Input
72
Sample Output
B
main.c
Loading editor…
Write C, then Run (custom I/O) or Submit (sample tests). ⌘/Ctrl+Enter submits.